Centrifugal machine.



PATENTED AUG. 25

J. J. BERRIGAN. GENTRIPUGAL MACHINE.

APPLIOATION FILED NOV. 26,}902.

2 SHEETS-SHEET 1.

1H) MODEL.

ATTORNEY THE Nonms PETERS co, wow-Luna. wnsnmumn. q. o.

2 SHEETS-$HEET 2.

R Y 0 E T N N r R E O V T N T I A PATENTED AUG. 25, 1903.

J; J/BERRIGAM v GENTRIFUGAL MACHINE. APPLICATION FILED NOV. 26, 1902.

K0 MODEL.

I WITNESSES:

p UNITED STATES Fatented August 25, 1903.

1 PATENT OFFICE.

.JoHN. JOSEPH BERRIGAN, F ORANGE, NEW JERSEY, AssIGNoR To FRANCIS J. AREND, on NEW YORK, N. Y.,

H OLM, SWEDEN.

AND JOHNBERNS'IROM, OF. STOCK- CENTRIFUGAL' MACHINE.

SPECIFICATION forming part of Letters PatentNo. 737,063, dated August 25, 1903.

Application filed November 2 ,1902. SerialNo. 132,875. (No model.)

To all whom it may concern: A Be it known that 1, JOHN J OSEPHBERRIGAN,

of Oran ge,Essex county,New Jersey,have invented a new and useful Improvement in Gentrifugal Machines, of which the following is a specification.

The invention relates to a centrifugal apparatus for the'separation of solids and liquids;

and more particularly to the type of such ap- I o paratus disclosed in United States Letters Patent No. 677,926, granted tome July 9, 1901.

My present invention consists in a machine in which two separations of the combined materials successively occur, the first separation delivering the solid material,with some small mented; also, in theconstruction of the appa;

ratus whereby one separating-receptacle is inclosed inthe other separating-receptacl e; also,

in the construction whereby the initially-separated material is delivered'to a centrifugal strainer or filter, whereby it is again separated as aforesaid; also, in the combinations and instrumentalities more especially pointed outin the claims.

In the accompanying drawings, Figure 1 is a diametral transverse section of the operating parts of my device.

Fig. 3 isa horizontal section on the line 3 3 of 3 5 Fig. l. I

Similar letters and numbers of reference indicate like parts- The outer receptacle A is composed of the cireularbottom plate 4 and the inverted cup 5. 0 The loweredge of cup 5 is flanged, and the circumference of the bottom plate 4; is threaded to receive a threaded ring 6, the upper flange 7 of which extends over the cup-flange. By means of ring 6 cup and bottom plate are tightly drawn together and the joint is packed by a gasket 8 between them.

The receptacle A is centrally supported upon the hollow shaft B. This shaft is in turn supported upon any suitable standard and rotated by 1nechanism,all substantially as partment 23.

Fig. 2 is a detailof the gearing in section on the line 2 2 of Fig. 1.

lower side of receptacle 0 is a box 25, in which is stepped the vertical shaft 26.

received in a recess in the bottom plate 4 is an inverted cup 9, the circular wall 10 of which is perforated and forms apartition in said receptacle. Between an opening 11 in cup 9 and a smaller opening 12 in the inve rt ed cup of receptacle A thereisa tapered passage or chan-- nel 13. In the radial partitions 33, above and below saidchannel, are openings 14, l, to

allow free flow of liquid around receptacle A.

Supported from the under side of the top of cup9 isa second-receptacle O. This is formed of the cup portion'15 and the annular inner partition 1 6,eccentricallydisposedinsaidcup. In the partition isa'n opening 17 which communicates with a smaller opening 18 in cup '15 by a passage 19. In the radial partitions 2'0,ab0ve and below this passage,a re openings :to allow free flowof liquid 'in the crescentshapedspace 11 between cup 15 and lining 16. Disposed centrally within the receptacle A and in the top of cup 9 is the feedinlet'pipe 22, 7 5' below which and on the'inner side of the top of cup15'is supported the feed-receiving com- Said-compartment is open on one side 24."

Within the 'hollow shaft B is a shaft D, which enters the recptacle A and carries the scrapers E, the Vertical edges of which are in proximity to 'the perforated wall 10. On the 23 shaft 26 carries scrapers G, the vertical '9; edges of which are in proximity to the wall of said compartment.

The crescent-shaped space H between the cup portion 15 and inner wall 16 of receptacle 0 communicates with the space I between per 100 forated wall 10 and cup 5 of receptacle A by means of a pipe 31.. In the bottom plate 4-, between said wall 10 and cup 5, is an outletpipe The shafts 1:3 and D being set in rotation, the operation of the apparatus is as follows: The combined solid and liquid material to be separated. enters by the inlet-pipe 22 to the feed-receiving compartment 23. Thence by the action of the centrifugal force and the scrapers G it is projected outward and upon the portion of the inner wall 1(3of receptacle 0 which is most eccentric with respect to the rotation axis of shaft B. The liquid escapes by the short tubes 3a in the inner partition 16 to the space II between said partition and cup 15 and thence by the pipe 31 to the space I, and so to outlet'pipe The solid ingredient as fast as projected against the inner wall 10 of receptacle 0 is carried by the scrapers F from its place of deposit to and over the substantially dry portion of the surface of said wall (the formation of which is fully explained in my aforesaid Letters Patent) and to the passage 19, whence by the action of the centrifugal force of rotation it is projected against the inner surface of the perforated wall 10. This wall is here shown as concentric with the axis of rotation of receptacle A. As fast as the solid material is thrown upon the portion of the wall 10, directly opposite the passage 19, it is removed by the scrapers E and carried around the inner surface of said wall to the outlet-passage 13, whence, as before, by the centrifugal force of rotation it is finally ej ected. Such moisture as may remain in the solid material after reaching perf orated wall 10 is strained through its perforations and escapes to the liquid-outlet pipe 32.

From the foregoing it will be seen that the combined material under treatment is prac tically twice separated, first in the receptacle 0 and then in the receptacle A. In the receptacle C it undergoes substantially the same separation as takes place in the machine described in my aforesaid Letters Patent. Then instead of escaping at once from the apparatus it is subjected to a second treatment, whereby Whatever moisture remains in it is ejected by centrifugal force through the perforations in wall 10 before said material is finally delivered. As already fully explained in my aforesaid Letters Patent, the solid material in receptacle 0 is carried by the scrapers over a substantially dry space on the inner wall of said receptacle before it reaches the outlet-passage 19, and is thus dried by the atmosphere. Inasmuch as the action of the centrifugal force of rotation is to cause the liquid passing by pipe 31 and the perforations in wall 10 to the space I, between wall 10 and cup 5, to form a ring against the inner surface of said wall, which ring does not extend inwardly beyond the outlet-pipe 32, it follows that the inner surface of wall 10 is also dry, so that thus an additional and much more extensive dry space is provided over which the solid material is transported before it reaches the final escape-passage 13. Therefore not only is the combined material subjected to two separations but the solid ingredient is carried over a greatly augmented dry area, and thus submitted for a longer period to the evaporating action of the atmosphere, so that from the finally-ejected solid a greater proportion of moisture is removed than is accomplished when the foregoin g construction is notpresent.

I claim 1. In a centrifugal machine, a rotary shaft, a separating device carried and rotated by said shaft, and a second separating device supported within and upon said first device, the said device being provided with openings whereby the combined materials are introduced into the inner device and after separation one of said materials is conducted to said outer device, substantially as described.

2. In an apparatus for the separation of solids and liquids, a rotary receptacle and within the same a strainer constructed to receive the materials to be separated; the said receptacle having an outlet at a distance from said strainer and between said strainer and the circumferential wall of said receptacle, substantially as described.

3. In an apparatus for the separation of solids and liquids, a rotary receptacle and a cylindrical chamber therein having a perforated wall; the said receptacle having an opening in its bottom communicating with the space surrounding said chamber, and at a distance from said perforated wall, substantially as described.

4.. In an apparatus for the separation of solids and liquids, a rotary receptacle and a chamber therein concentric therewith and having a perforated wall; the said receptacle having an opening in its bottom communicating with the space surrounding said chamber and at a distance from said perforated wall, substantially as described.

5. In an apparatus for the separation of solids and liquids, a rotary receptacle, a perforated annular partition within the same and means for delivering the materials to be separated into the space incloscd by said partition; the said receptacle having an outlet between said partition and the inner circumferential surface of said receptacle, substantially described.

6. In an apparatus for the separation of solids and liquids, a rotary cylindrical receptacle having an opening in its circumferential wall and an opening in its bottom, partitions between said openings, an annular perforated partition within said receptacle and means for delivering the materials to be separated into the space incloscd by said annular par tition; the said outlet in the bottom of said receptacle being disposed between the inner circumferentialsurface of said receptacle and said perforated partition, substantially as described,

7 In an apparatus for the separation of solids and liquids, a rotary receptacle, an annular perforated partition within the same and means Within said receptacle for centrifugally projecting the materials to be separated against the inner surface of said partition; the said receptacle havingan outlet between said partition and the inner circumferential surface of said receptacle, substantially as described.

8. In an apparatus for the separation of solids and liquids, a rotary receptacle, an annular perforated partition within the same, a

conduit between openings respectivelyin said partition and said receptacle, means for delivering the material to be separated into the space inclosed by said partition, and means for conveying the solid material deposited on and the inner circumferential surface of said receptacle, substantially as described.

10. In a centrifugal machine, the combination of the rotary receptacle A, having openings 12 and 32, the circular perforated partition 10 within said receptacle having opening 11, the said openings 11 and 12 being connected by a passage 1.3, revolving scrapers E within said partition, and means for delivering into the space inclosedby said partition the combined materials to be separated, substantially as described. 1

11. In a centrifugal machine, the combination of the rotary receptacle A having openings 12 and 32, the circular perforated parti- 11, the said openings 11 and 12 being connected by a passage 13, revolving scrapersE within said partition, the receptacle 0 having openings 17 and 18, passage 19 connect- .ing said openings and within said receptacle the revolving scrapers'F, substantially as described.

In testimony whereof I havesigne'd my.

name to this specification in the presence of. two subscribing witnesses.

JOHN JOSEPH BERRIGAN. lVitnesses:

S. 13. NEUBURGER, I. A. VAN WART.

45 tion 10 within said receptacle having opening 

